8265100: (fs) WindowsFileStore.hashCode() should read cached hash code once

Reviewed-by: alanb
2021-04-13 18:43:33 +00:00 · 2021-04-13 18:43:33 +00:00 · 3b576ed99d
commit 3b576ed99d
parent 8df8512bc8
1 changed files with 5 additions and 3 deletions
--- a/src/java.base/windows/classes/sun/nio/fs/WindowsFileStore.java
+++ b/src/java.base/windows/classes/sun/nio/fs/WindowsFileStore.java
@ -250,11 +250,13 @@ class WindowsFileStore

    @Override
    public int hashCode() {
-        if (hashCode == 0) { // Don't care about race
-            hashCode = (volType == DRIVE_FIXED) ?
+        int hc = hashCode;
+        if (hc == 0) {
+            hc = (volType == DRIVE_FIXED) ?
                root.toLowerCase(Locale.ROOT).hashCode() : root.hashCode();
+            hashCode = hc;
        }
-        return hashCode;
+        return hc;
    }

    @Override